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Corrosion Inhibition of Mild Steel in Acidic Medium by Salvadora Persica (Miswak) Part 1: in Sulfamic Acid

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1TitleTitle of DocumentCorrosion Inhibition of Mild Steel in Acidic Medium by Salvadora Persica (Miswak) Part 1: in Sulfamic Acid
2CreatorAuthor's name, affiliation, country HESHAM T.M. ABDEL-FATAH, ALIAA A. M. HASSAN, ZAKI A. SAADI,
MAISON M. SHETIFY and HALA E.E. EL-SEHIETY
Department of Corrosion Research, Central Chemical Laboratories, EEHC, Sabtia, Cairo, Egypt
Department of Chemical Engineering,Higher Technological Institute, Tenth of Ramadan City, Egypt
Faculty of Science and Arts in Al-Ardha, Jazan University, Al-Ardha, Jazan, Saudi Arabia
Department of Chemistry Laboratory, Psychiatric Hospital, Jazan, Saudi Arabia
3SubjectDicipline(s) Chemical Science
3SubjectKeywords Acid cleaning, Sulfamic acid, Corrosion inhibition, Mass loss, EIS, EFM
4DescriptionAbstract Aqueous root extract of Salvadora persica (ARESP) was studied as a new green corrosion inhibitor for mild steel (MS) in 1.0 N sulfamic acid solutions by using mass loss and electrochemical techniques at temperatures ranging from 303 to 333 K. Appropriate equivalent circuit model was used to calculate the impedance parameters. The electrochemical impedance spectroscopy (EIS) measurements showed that the charge transfer resistance increases with an increase in the concentration of ARESP. The results obtained from the new technique electrochemical frequency modulation (EFM) indicated that ARESP acts as mixed type of inhibitor. The protection efficiency increases with the increase in inhibitor concentration and decreases with temperature. The results of the study revealed that ARESP inhibits the corrosion of MS through adsorption process following Temkin adsorption isotherm model. The apparent activation energy (Ea) and the equilibrium constant of adsorption (Kads) were calculated. Scanning electron microscopy (SEM) was used to investigate the adsorbed film of ARESP on the steel surface.
5PublishersOrganizing agency, location WWW Publications, India
6Contributor Sponsor(s) -
7DateDate (YYYY-MM-DD) -
8TypeStatus & genre Peer-reviewed Article
8TypeType
9FormateFile Formate PDF
10IdentifierUniform Resource Identifier Click Here
10IdentifierDigital Object Identifier DOI:10.7598/cst2014.688
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  3 , Number  (1), (2014)
12LanuguageEnglish=en en
13RelationSupp.files
14Coverage -
15CopyrightCopyright and permissions
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